Various (Arizona Premium Mattresses-style modular systems) Modular DIY mattress (latex + pocket coil base with replaceable layers)
8/10
Community consensus favors modular DIY mattresses using latex cores/toppers plus a coil base because only the failing layer may need replacement. Reported lifespans are commonly 6–10+ years for the latex base, with toppers expected to be replaced around a decade, supporting BIFL-like reliability in practice for many users.
